/Engine/Source/Runtime/Engine/Public/PluginBlueprintLibrary.h
Get the filesystem path to a plugin's descriptor.
true if the named plugin was found and the plugin descriptor filesystem path was stored in OutFilePath, or false otherwise
static bool GetPluginDescriptorFilePath ( const [FString](API\Runtime\Core\Containers\FString) & PluginName, [FString](API\Runtime\Core\Containers\FString) & OutFilePath )